Touch Display Screen Fingerprint Unlocking Power Control
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Solution Overview
Problem
Current smartphone fingerprint unlocking methods often result in inefficient energy consumption and accuracy issues due to the need for separate fingerprint recognition devices and sequential waking up of components, which can lead to accidental data collection and excessive power usage.
Innovation Solution
Integrating a fingerprint recognition area within the touch display screen, where the touch display screen instructs the fingerprint recognition device to collect data only upon a specific touch operation in that area, and using an MCU to compare the data with preset templates, thereby waking up necessary components synchronously and reducing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate fingerprint recognition device is used, then fingerprint recognition function is achieved, but energy consumption increases and accuracy decreases due to sequential component waking up
Solution Approach 1:
The patent merges the fingerprint recognition device with the touch display screen, integrating the fingerprint sensor into the display structure. This allows the touch display screen to simultaneously serve as both the user interface and the fingerprint recognition area, eliminating the need for separate component waking up sequences and reducing energy consumption while maintaining recognition accuracy.
Solution Approach 2:
The patent implements preliminary action by having the touch display screen wake up and detect touch operations before the fingerprint recognition device needs to process the fingerprint data. The touch display screen proactively monitors for touch operations in the fingerprint recognition area and can trigger fingerprint data collection immediately when a touch is detected, eliminating sequential delays and reducing overall system response time and energy consumption.
2Adaptability or versatility
If fingerprint recognition device is separated from touch display screen, then fingerprint function is independent, but accidental data collection occurs and component service life decreases
Solution Approach 1:
The patent applies local quality by creating a specific fingerprint recognition area within the touch display screen that has specialized functionality. This designated area on the touch display screen is configured to detect touch operations specifically for fingerprint recognition, while other areas of the display maintain their normal functions. This localized approach prevents accidental data collection from unintended touch areas while maintaining the independence of the fingerprint recognition function.
Data Source
AI summary
A method for controlling unlocking and related products are provided. The method includes the following. A touch display screen of a terminal instructs a fingerprint recognition device of the terminal to collect fingerprint data upon detecting a first touch operation in a first area. The fingerprint recognition device collects the fingerprint data and sends the fingerprint data to a fingerprint recognition device microcontroller unit MCU of the terminal. The fingerprint recognition device microcontroller unit MCU compares the fingerprint data with preset fingerprint template data in the terminal and instructs an application processor AP of the terminal to light up the touch display screen when the fingerprint data is matched with the fingerprint template data. The AP lights up the touch display screen and unlocks the touch display screen.